Swing head structure of wrench with two kinds of torque output

Details Swing head structure of wrench with two kinds of torque output Swing head structure of wrench with two kinds of torque output

2006-09-12

2006-09-12

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S177700, C081S177750, C081S177850, C081S177900, C081S058100

Reexamination Certificate

active

07104165

ABSTRACT:
A swing head structure of a wrench with two kinds of torque output includes a head part and a handle pivotally coupled together by a shaft, the wrench can also be used as a ratchet wrench or can rotate the handle backwards and forwards to make the head part to rotate in one direction, the rotating direction can be changed, the swinging movement of the head part does not affect the rotation and transmission of the wrench and the handle, the swinging head part includes two kinds of torque output to the wrench.

REFERENCES:
patent: 1324258 (1919-12-01), Lewis
patent: 2791142 (1957-05-01), Lyon
patent: 4296654 (1981-10-01), Mercer
patent: 5784934 (1998-07-01), Izumisawa
patent: 6070499 (2000-06-01), Wisbey
patent: 6220125 (2001-04-01), Lan
patent: 6311584 (2001-11-01), Chu
patent: 6457386 (2002-10-01), Chiang
patent: 2003/0015070 (2003-01-01), Chen

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